Achalasia

Achalasia is a disorder of the gullet (oesophagus) where it loses the ability to move food along. The valve at the end of the gullet also fails to open and allow food to pass into your stomach.

As a result, food gets stuck in your gullet and is often brought back up.

A ring of muscle called the lower oesophageal (cardiac) sphincter keeps the opening from the gullet to the stomach shut tight to prevent acid reflux (acidic stomach content moving back up into the gullet).

Normally, this muscle relaxes when you swallow to allow the food to pass into your stomach. In achalasia, this muscle does not relax properly and the end of your gullet becomes blocked with food.

Achalasia is an uncommon condition that affects about 6,000 people in Britain. It is sometimes known as cardiospasm.